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Articles on Polar regions

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We need to know more about how ice sheets interact with the warming oceans and warming atmosphere. Greenpeace/ADavies

Improving sea-level projections

Satellite and in situ observations show sea level is continuing to rise. In the last Intergovernmental Panel on Climate Change report, earth system model projections indicated global sea-level rise by…
Melting Arctic Sea ice should be the warning we need about expanding coal exports. Michael Sonnabend

On Arctic Sea ice melt and coal mine canaries

Despite peak global temperatures in 2005 and 2010 (unprecedented in the instrumental record), a recent sharp plunge in volume of the Arctic Sea ice and a spate of extreme weather events, coal mining, coal…

Ancient DNA shows penguin recovery

Ancient penguin DNA shows that Macquarie Island penguins have recovered genetic diversity in the past 80 years. Macquarie…

Satellites map shrinking ice sheets

Ice caps and glaciers in Greenland and Antarctica shed 150 billion tons of ice annually from 2003 to 2010 according to the…
It’s time to pay attention to warnings from the Arctic. NOAA Photo Library

Teetering on a tipping point: dangerous climate change in the Arctic

We are seeing the first signs of dangerous climate change in the Arctic. This is our warning that humanity is facing a dire future. The Arctic region is fast approaching a series of “tipping points” that…
An ice-free world isn’t impossible – even though it seems the stuff of science fiction. Alistair Knock

As emissions rise, we may be heading for an ice-free planet

Last December’s meeting of the American Geophysical Union featured three of the world’s leading climate scientists: James Hansen (NASA’s chief climate scientist), Elco Rohling (National Oceanography Centre…

On again, off again for Arctic ice

New research indicates that although Arctic sea ice will melt away as the climate continues to warm, it may temporarily stabilise…

Tsunami breaks off icebergs

For the first time scientists have observed the power of a tsunami to break off large icebergs in Antarctica. The tsunami…
Polar bears are at the centre of a scientific fracas in the US. AAP

Polar bear scientist on thin ice in Arctic imbroglio

Something does not add up. About two weeks ago, a scientist working for the US Bureau of Ocean Energy Management, Enforcement and Regulation (BOEMRE), Dr Charles Monnett, was placed on administrative leave…

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